Wanted to share this for the homebrew PDA enthusiasts: https://github.com/mudita/MuditaOS. I think this would make a good basis for a PDA OS, as it's built on FreeRTOS and is designed for an e-ink display.
3 years ago · 👍 negepezzannyitfiam, devyl, syntheist
https://github.com/mudita/MuditaOS
I've been keeping my eye on this for a while. Really interesting phone and great that they open sourced the OS. · 3 years ago
Note that some required assets are missing, won't build currently - see issue here https://github.com/mudita/MuditaOS/issues/3216 · 3 years ago